can't use it anymore on linux

[farvardin]

I've installed the udev rules and rebooter my computer. When I connect the ems cart on usb, I get this on dmesg:

[ 701.845271] usb 3-7: new full-speed USB device number 9 using xhci_hcd
[ 701.972969] usb 3-7: New USB device found, idVendor=4670, idProduct=9394
[ 701.972975] usb 3-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0

when I start ems-qart, I can't access the cart, the interface says it's not connected. When I click on "refresh", I get those errors in console:

qt5ct: using qt5ct plugin
qrc:/qml/MainView.qml:416: TypeError: Cannot read property 'title' of null
qrc:/qml/MainView.qml:422: TypeError: Cannot read property 'checksumValid' of null
qrc:/qml/MainView.qml:453: TypeError: Cannot read property 'title' of null
qrc:/qml/MainView.qml:459: TypeError: Cannot read property 'checksumValid' of null

[jurassicjordan]

getting a similar problem, it simply doesnt detect the card unless I run ems-qart in sudo

Failed to open device, libusb error: LIBUSB_ERROR_ACCESS
file:///usr/lib/qt/qml/QtQuick/Dialogs/DefaultFileDialog.qml:102:33: QML Settings: Failed to initialize QSettings instance. Status code is: 1
file:///usr/lib/qt/qml/QtQuick/Dialogs/DefaultFileDialog.qml:102:33: QML Settings: The following application identifiers have not been set: QVector("organizationName", "organizationDomain")